.banner{
    background: url(../images/piqsels.com-id-frfsx.jpg) center no-repeat;
    background-size: cover;
    padding-top: 38%;
    position: relative;
    width: 100%;
    /* height: 6px; */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE 10+ */
}
.content-hezuo{
    background: url(../images/beijing.png) center top no-repeat;
    /* background-size: 700px 420px; */
    height: 1320px;
    
}
.content-hezuo .content-hezuo-title{
    text-align: center;    
    margin-bottom: 70px;
    padding: 100px 0;
}
.content-hezuo .content-hezuo-title span{
    font-size: 30px;
    display: inline-block;
    position: relative;
    color: #fff
}
.content-hezuo .content-hezuo-title span:before{
    content: '';
    width: 150px;
    height: 1px;
    background: #fff;
    position: absolute;
    left: calc(100% + 25px);
    top: 50%;
    transform: translateY(-50%);
}
.content-hezuo .content-hezuo-title i:first-child {
    left: -25px;
}
.content-hezuo .content-hezuo-title span i{
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 1px solid #474747;
    background: #fff;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}
.content-hezuo .content-hezuo-title i:last-child {
    right: -25px;
}

.content-hezuo .content-hezuo-title span:after {
    content: '';
    width: 150px;
    height: 1px;
     background: #fff;
    position: absolute;
    right: calc(100% + 25px);
    top: 50%;
    transform: translateY(-50%);
}
.content-hezuo .content-hezuo-title strong {
    font-weight: normal;
    display: block;
    font-size: 20px;
    color: #fff;
    text-transform: uppercase;
    margin-top: 5px;
}
 #app {
        color: #fff;
        /* background-color: pink; */
        margin: 0 auto;
      }
      #app li {
        list-style: none;
      }
      #app ul {
        margin: 0;
        padding: 0;
        display: flex;
        /* 换行 */
        flex-wrap: wrap;
        align-items: center;
      }

      /* #app ul li {
        width: 14%;
        margin-right: 3.2%;
      } */
      /* 第一个li元素 */
      /* #app ul li:first-child {
        margin-left: 8.5%;
      }
      #app ul li:nth-child(5),
      #app ul li:nth-child(11),
      #app ul li:nth-child(16) {
        margin-right: 0;
      }
      #app ul li:nth-child(12) {
        margin-left: 8.5%;
      } */
      #app ul li{
        width: 14%;
        margin-right: 13.2%;
      }
       #app ul li:first-child{
        margin-left: 16.2%;
      }
       #app ul li:nth-child(4){
        margin-left: 5%;
        margin-right: 11%;
      }
       #app ul li:nth-child(7){
        margin-left: -2%;
        margin-right: 0%;
      }
      #app ul li:nth-child(8){
        margin-left: 16.2%;
      }
      #app ul li:nth-child(14){
        margin-left: -2%;
        margin-right: 0%;
      }
      #app ul li span {
        position: relative;
        display: block;
        width: 100%;
      }
      #app ul li span i {
        display: block;
        margin: 0 auto;
        width: 75%;
        padding-top: 75%;
        background: #fff;
        border-radius: 6px;
        transform: rotate(45deg);
      }
      #app ul li span img {
        position: absolute;
        top: 50%;
        /* 让div 沿Y轴平移自身高度的一半 */
        transform: translateY(-50%);
        max-width: 60%;
        display: block;
        max-height: 60%;
        margin: 0 auto;
        left: 0;
        right: 0;
      }
@media screen and (mix-width:1200px){

}
@media screen and (max-width:760px){
.navbar-default .navbar-nav > li > a {
    color: blue;
}
.navbar-default .navbar-nav > li > a:hover {
    color:#fff;
}
    .banner {
    padding-top: 60%;
}
    .banner .container{
        width: 100%;
        /* padding: 2%; */
        padding: 0 15px
    }
    .banner .container ul {
    padding: 10px 0;
    font-size: 14px;

}
.banner .banner-title  ul li {
    font-size: 14px;
}
.banner .banner-title .container strong{
    font-size: 18px;
}
.banner .banner-title .container span{
    font-size: 16px;
}

.banner-call .banner-navUl ul li svg {
    display: block;
    margin: 0 auto;
    text-align: center;
    font-size: 16px;
    margin-bottom: 15px;
}
.content-hezuo-content .container{
  width: 100%;
}

 #app {
        color: #fff;
        /* background-color: pink; */
        margin: 0 auto;
      }
      #app li {
        list-style: none;
      }
      #app ul {
       padding-left: 15%;
       display: -webkit-flex;
       align-items: center;
       flex-wrap: wrap;
       justify-content: flex-start;
       margin: 0;
       padding: 0;
      }
      #app ul li{
        width: 35%;
        margin-right:3.2%
      }
       #app ul li:first-child{
       margin-left: 33%;
       display: block;
      }
       #app ul li:nth-child(2){
       margin-left: 10%;
      }
       #app ul li:nth-child(3){
       margin-left: 7%;
      }
       #app ul li:nth-child(4){
       margin-top: 12%;
       margin-left: 10%;
      }
        #app ul li:nth-child(5){
       margin-top: 12%;
       margin-left: 0%;
      }
        #app ul li:nth-child(6){
       margin-top: 12%;
       margin-left: 10%;
      }
        #app ul li:nth-child(7){
       margin-top: 12%;
       margin-left: 7%;
      }
        #app ul li:nth-child(8){
       margin-top: 12%;
       margin-left: 10%;
      }
        #app ul li:nth-child(9){
       margin-top: 12%;
       margin-left: 7%;
      }
         #app ul li:nth-child(10){
       margin-top: 1%;
       margin-left: 33%;

      }
      #app ul li span {
        position: relative;
        display: block;
        width: 100%;
      }
      #app ul li span i {
        display: block;
        margin: 0 auto;
        width: 75%;
        padding-top: 75%;
        background: #fff;
        border-radius: 6px;
        transform: rotate(45deg);
      }
      #app ul li span img {
        position: absolute;
        top: 50%;
        /* 让div 沿Y轴平移自身高度的一半 */
        transform: translateY(-50%);
        max-width: 60%;
        display: block;
        max-height: 60%;
        margin: 0 auto;
        left: 0;
        right: 0;
      }
 
      #app ul li:nth-child(3){
        marign-right:0px !important;
      }
      #app ul li:nth-child(11),
      #app ul li:nth-child(16) {
        margin-right: 0;
      }
      #app ul li:nth-child(12) {
        margin-left: 8.5%;
      }
}